Back to Search
Start Over
Feasibility of using low density polyethylene sheets to detect atmospheric organochlorine pesticides in Alexandria, Egypt.
- Source :
- Environmental Pollution; Oct2013, Vol. 181, p151-158, 8p
- Publication Year :
- 2013
-
Abstract
- Abstract: Egypt is a major agricultural country in Africa with a known past of organochlorine pesticides (OCPs) application, yet data on atmospheric levels of OCPs in Egypt is sparse. Low density polyethylene (LDPE) passive samplers were therefore deployed for 3 weeks each at 11 locations in July, 2010 and January, 2011 in Alexandria to screen for gas-phase OCPs. Performance reference compounds were used to investigate the uptake kinetics. Field-derived sampler-air partitioning coefficients (K <subscript>PE-A</subscript>s) for OCPs were significantly correlated against the compounds' subcooled liquid vapor pressure (log P <subscript>L</subscript>): [log K <subscript>PE-A</subscript> = −0.77 ± 0.07*log P <subscript>L</subscript> + 6.35 ± 0.13 (R <superscript>2</superscript> = 0.90; n = 17; SE = 0.19; p < 0.001)]. Estimated and measured OCP concentrations in Alexandria agreed well (factor difference ≤ 2) indicating the feasibility of monitoring OCPs using LDPEs. OCP concentrations ranged from <LOD to 168 pg/m<superscript>3</superscript>. Calculated isomeric ratios indicated recent usage of chlordanes and endosulfans. [Copyright &y& Elsevier]
- Subjects :
- LOW density polyethylene
ORGANOCHLORINE compounds
FEASIBILITY studies
PESTICIDES
Subjects
Details
- Language :
- English
- ISSN :
- 02697491
- Volume :
- 181
- Database :
- Supplemental Index
- Journal :
- Environmental Pollution
- Publication Type :
- Academic Journal
- Accession number :
- 89615572
- Full Text :
- https://doi.org/10.1016/j.envpol.2013.06.031